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nestlog: + terminal colors for entry/exit/code location

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This commit is contained in:
Roland Conybeare 2023-09-15 13:24:02 -04:00
commit fd2be2a4ae
6 changed files with 265 additions and 12 deletions
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29
include/nestlog/function.hpp
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@ -1,5 +1,7 @@
/* @file function.hpp */
#include "color.hpp"
#include <iostream>
#include <cstdint>
@ -19,11 +21,19 @@ namespace xo {
template <typename Tag>
class function_name_impl {
public:
/* color: ANSI escape color (lookup Select Graphic Rendition subset)
* 0 = none
* 31 = red
*/
function_name_impl(function_style style,
std::string_view pretty)
: style_{style}, pretty_{pretty} {}
color_encoding encoding,
std::uint32_t color,
std::string_view pretty)
: style_{style}, encoding_{encoding}, color_{color}, pretty_{pretty} {}
function_style style() const { return style_; }
color_encoding encoding() const { return encoding_; }
std::uint32_t color() const { return color_; }
std::string_view const & pretty() const { return pretty_; }
/* e.g.
@ -152,11 +162,16 @@ namespace xo {
if (ch == '>' || ch == ')')
--nesting_level;
}
} /*print_aux*/
private:
/* FS_Simple | FS_Pretty (= FS_Literal) | FS_Streamlined */
function_style style_;
/* CE_Ansi | CE_Xterm */
color_encoding encoding_;
/* color, if non-zero */
std::uint32_t color_;
/* e.g. __PRETTY_FUNCTION__ */
std::string_view pretty_;
}; /*function_name_impl*/
@ -167,19 +182,25 @@ namespace xo {
operator<<(std::ostream & os,
function_name const & fn)
{
/* set text color */
switch(fn.style()) {
case FS_Literal:
os << fn.pretty();
os << with_color(fn.encoding(), fn.color(), fn.pretty());
break;
case FS_Pretty:
os << "[" << fn.pretty() << "]";
os << "[" << with_color(fn.encoding(), fn.color(), fn.pretty()) << "]";
break;
case FS_Simple:
os << color_on(fn.encoding(), fn.color());
function_name::print_simple(os, fn.pretty());
os << color_off();
break;
case FS_Streamlined:
/* omit namespace qualifiers and template arguments */
os << color_on(fn.encoding(), fn.color());
function_name::print_streamlined(os, fn.pretty());
os << color_off();
break;
}